Zakaria Bakkali Belgium Jersey

[ding0728]

What Is The Philosophy Of Angular? What is the philosophy of Angular?

AngularJS is built around the belief that declarative programming should be used for building UIs and wiring software components Miguel Layun Jersey , while imperative programming is excellent for expressing business logic. The framework adapts and extends traditional HTML to better serve dynamic content through two-way data-binding that allows for the automatic synchronization of models and views. As a result, AngularJS deemphasizes DOM manipulation and improves testability.

AngularJS design goals:

Decouple DOM manipulation from application logic. This improves the testability of the code.
Regard application testing as equal in importance to application writing. Testing difficulty is dramatically affected by the way the code is structured.
Decouple the client side of an application from the server side. This allows development work to progress in parallel, and allows for reuse of both sides.
Guide developers through the entire journey of building an application: from designing the UI, through writing the business logic, to testing.


Angular follows the MVC pattern of software engineering and encourages loose coupling between presentation, data, and logic components. Using dependency injection, Angular brings traditional server-side services, such as view-dependent controllers, to client-side web applications. Consequently Meliton Hernandez Jersey , much of the burden on the backend is reduced, leading to much lighter web applications.

Why have we chosen AngularJS?

Well, HTML is great for declaring static documents, but it falters when we try to use it for declaring dynamic views in web-applications. AngularJS lets us extend HTML vocabulary for our applications. The resulting environment is extraordinarily expressive, readable, and quick to develop. AngularJS is a great JavaScript framework that has some very compelling features for not only developers, but designers as well:

Two way data-binding

Data-binding is probably the coolest and most useful feature in AngularJS. It saves us from writing a considerable amount of boilerplate code. A typical web application may contain up to 80% of its code base, dedicated to traversing, manipulating, and listening to the DOM. Data-binding makes this code disappear Mario Osuna Jersey , so we can focus on the application.

Templates

In AngularJS, a template is just plain-old-HTML. The HTML vocabulary is extended, to contain instructions on how the model should be projected into the view. The HTML templates are parsed by the browser into the DOM. The DOM then becomes the input to the AngularJS compiler. AngularJS traverses the DOM template for rendering instructions, which are called directives. Collectively, the directives are responsible for setting up the data-binding for the application view.

MVC

AngularJS incorporates the basic principles behind the original MVC software design pattern into how it builds client-side web applications. The MVC or Model-View-Controller pattern means a lot of different things to different people. AngularJS does not implement MVC in the traditional sense, but rather something closer to MVVM (Model-View-ViewModel).

Dependency Injection

AngularJS has a built-in dependency injection subsystem that helps our developers by making the application easier to develop, understand, and test. Dependency Injection (DI) allows us to ask for application dependencies, rather than having to go look for them or make them yourself.

Directives

Directives can be used to create custom HTML tags that serve as new, custom widgets. They can also be used to 鈥渄ecorate鈥?elements with behavior and manipulate DOM attributes in interesting ways.

and + Extensibility

AngularJS is a toolset for building the framework most suited to your application development. It is fully extensible and works well with other libraries. Every feature can be modified or replaced to suit your unique development workflow and feature needs.

Are there any alternatives for AngularJS?

The one of the known alternative for the AngularJS is the Backbone.js. The most prominent feature that separates the two libraries is in the way models and views are synchronized. Whereas AngularJS supports two-way data-binding Marco Fabian Jersey , Backbone.js relies heavily on boilerplate code to harmonize its models and views. Backbone.js communicates well with RESTful backend. A very simple use of REST APIs is also available with AngularJS using the $resource service. AngularJS also provide a $http service which is more flexible, connecting to remote servers either through a browser's XMLHttpRequest object or via JSONP. AngularJS templating uses a combination of customizable HTML tags and expressions. Backbone.js uses different templating engines such as Underscore.js.

Other frameworks deal with HTM shortcomings by either abstracting away HTML, CSS, andor JavaScript or by providing an imperative way for manipulating the DOM. Neither of these address the root problem that HTML was not designed for dynamic views.

What do you think would be great to see in AngularJS framework?

Well, AngularJS has pretty many nice things that considerably simplify the dev